Razor blade pack



April 16,v 1946. r KUHN). Erm. 2,3l98f539 RAZOR 4BLADE PACK Filed sept. '11, 1.941Y

l ATTORNEY Patented Apr. 16, 1946 RAZOR BLADE PACK Leopold Kuhnl, Bridgeport, and John R. Reyburn, Fairfield, Conn., assgnors to Magazine Repeating Razor Company, New York, N. Y., a

. corporation of New Jersey Application September 11, 1941, Serial No. 410,406

12 Claims. (Cl. 206-16) The invention relates to razors of the magazine type and particularly to a blade pack that may be utilized for loading the magazine'.

The object is a blade pack the blades `of which are retained in assembly by a suitable clip which q may co-operate with the moving parts of the razor to insert the pack inthe magazine and which may be stripped from the stack after insertion of the pack by simply retracting the blade feeding plunger,

Another object is a blade just described in'which, while the clip can be readily' stripped from the stack of blades, the

blades are nevertheless retained securely against dislocation by shipping and handling` and the operation of loading the magazine.

Another object is a blade pack vof the same character as already described, in which the cutting edges of the blades are protected against impairment by contact with the walls of the magazine and other objects.

Referring to the drawing, Fig. 1 is a view in longitudinal-vertical section of a razor in connection with which the blade pack maybe used, and showing a stack of blades therein ready for ejection one by one to the shaving head of a razor;

Fig. 2 is an isometric View of the blade pack inverted from the position shown in Fig. 1;

Fig. 3 is an isometric view of the blade pack reversed in position from :the position shown in Fig. 2;

Fig. 4 is a longitudinal-verticalsection on the median plane of the razor pack of Fig. 2;

Fig. 5 is a view in section on the line 5-5of Fig. 4; y

Fig. 6 is a detail View showing how the main spring of the razor co-operates with the blade pack;

Fig. 7 is an isometric view of a single blade of the pack partly broken away;

Fig. 8 is an isometric view of a modified form of clip by which the blade pack is retained in assembly; Fig. 9 is a view of the handle of a razor showing how the blade pack may be inserted therein.

Referring more in detail to the drawing, the blade pack itself will first be described. It consists, in the first place, of a stack of blades, a single one of which (I0) is illustratedin Fig. '7. In

pack of the nature nubs so that to each indentation there is a nub on the opposite side ofthe blade similarly positioned longitudinally and laterally of the latter. The blades may therefore be stacked so that the nubs of each blade nest in and engage mating indentations in a contiguous blade, and thus the -stack takes the form of `a rectangular parallelepipedon with the edges of the blades all on one side. For convenience in the punching operation and to adapt the indentations and nubs for co-engagement, the contour of each indentation approximately conforms to that of the surface of a cone, thus in each caseproducing shoulders I3 and I3a. The nubs are of a contour similar to that of the indentations and thushthere are produced shoulders I4 and I4a. In stacking,\shoul ders I4 and Ida of the `nubs abut the shoulders 'I3 and I3a of theindentations of a contiguous blade, the nubs nesting in the indentations. Both indentations and nubs slope away from the surface of the blade in the same direction with respect to the blade. The slope ofthe indentations and the slope of the nubs are such that each blade can be dislodged from the blade beneath it (with reference to the position shown in Fig.` l) by the application of a force acting longitudinally ofthe blade in a direction to separate the abutting shoulders. A blade cannot, however, be dislodged from its neighbor by the application of a longitudinally acting force in the opposite direction due to the positive resistance offered by the abutting shoulders of the indentations and nubs.

The stack indicated by the numeral I5 is retained in assembly by means of a clip having the general form of the letter U and comprising two legs I6 and I1 formed by folding a strip of sheet metal on itself so that the legs are approximately parallelwith each other or, preferably, slightly convergent from thefold33. AThe. metal of the `clip iscresilient to render the clip readily releasable but at the same time it is' stiff enough to clamp the stack firmly. The leg I1 may extend this case it is of the single cutting edgev type the entire length of the stack," but the leg I5 is short enough to expose the shoulder llt of the nub I2 of the upper exterior blade (with reference to the position shown in Fig. 2) and is provided with an aperture I8 which engages Athe nub I2a of the same blade. This engagement consists in releasably locking the clip to the stack,

but by virtue of the slope of the nub and the corresponding slope of the indentation with which it is engaged does not interfere with the withdrawal of the clip from the stack. The marginal areas of both `legs extend beyond the plane of the blade` cutting edges andare deflected tof blades of the stack in their direction.' Disloca-' tion of the blades of the stack in the opposite direction is prevented bythe inturned portions I9 and I 9a. In explanatiomit is to be noted that in the sharpening operation most razor blades are iirst ground so thatrthe bevel facets resulting from grinding include a predetermined included angle. In honing this included angle is increased near the extreme edge. Where this is the case the .deflection is such that the vdeected portions may, and preferably are, in contact throughout with the ground yareas of the Vbevel facets. In this relationship, however, .they

are clear Vof the honed areas and of the V.cutting edges by reason of the increased angle referred to. However, it is not necessary thattheinturned portions I9 and Illa, lie in contact with theground areas .of the facets throughout. .It is sufficient if they are inturned enough to serve as a'barrier to the dislocation' of the vstack inY their direction. In either .case the pack may be handled and shipped and `inserted in a razor as will be later explained without impairing thesharpness of the edges.

lTo avoid dislocation of the stackinthe direction of the fold of the clip, Aears ZI and 22 may be struck in, the ear 2l from the shorter leg I6 and the ear 22 from the longer leg I?. 'As a matter of practice, only one Yof these ears is necessary, and, if only one is made use of, Vit is preferably `the ear 22, since in the process of striking it in, the aperture 23 is produced, the purpose Aof which will presently appear in connection with the'description of the razor in 'which the pack'is to be inserted. For further security the tabs 23a Vand 23h may be struck from the edges of the legs I6 and I'I.V Contact of the extreme ends of the edges of the blades with these tabs does no harmsince the razors in which such blades are used are nearly always provided with means to protect the -face of the user from being cut or scratchedrby the extreme corners of the blades.

A modied form of clip with the stack shown in dotted lines is shown in Fig. 8. It is similar to the clip already described except that the inturned tabs 24 and 24a serve the purpose of the inturned edge I9a and the inturned tabs 25V and V25a serve the purpose oi the inturned edge I9 (see Fig. The angles of deection of these tabs are the same as the angles of deflection of the edges I9 and I9a of Fig. 5. The modification consists in merely removing functionless material from the clip.

Likewise, the clip of Fig. 8 is provided with tabs 26 which take the place of the inturned edges 20 and 20a, of Fig. 5. In this case also the modification` consists merely in removing functionless marial from the inturned portions 20 and 29a of '2%. 5.

Before describing the way in which the invention may be utilized, it may be pointedV out that, if the shoulder'of the nub i2 of the upper exterior blade` (Fig. 2) engages a positive stop acting against the shoulder I4, the clip may be VISIS stripped from the stack in a lengthwise direction without disturbing the stack assembly since each blade beginning with the topmost blade (also Fig. 2) positively engages the blade succeeding it by virtue of the inter-engagement of the shoulders of the nubs and indentations.

Proceeding then to a description of a suitable razor with which the pack may be used and as an illustration of how it may be used, reference is made to Fig. 9. In this gure the shaving head of the razor is omitted since insofar as the purposes of the invention are concerned it is immaterial what becomes of a blade as it is ejected from the magazine. In Fig. 9 therefore is shown only the handle of a razor which, besides serving as ahandle., also serves as a magazine for blades. A razor of this general type having the characteristics given is shown in patents to Schick, No. 1,797,733, issued March 24, 1931; Rodrigues, No. 2,111,739, issued March 22, 1938; and Rodrigues, 1,877,429, issued September 13, 1932, the essential characteristics of which, except so far as adapted to utilize the blade stack of this invention, consists of an elongated boxlike structure 21, provided with a reciprocably mounted plunger for ejecting the blades from the magazine one 'by one through the blade-ejection orice 28 and amain spring 29 for causing the stack, as a whole, to bear against a wall of .the structure. The plunger, indicated by the numeral 30, is provided with a closure blockV 3| which, when occupying the position shown in Fig.. 1, closes the open end of the structure. 'I'he plunger is provided with .a hook 32 with which the aperture 23 detachably engages. The stack having been laid on the plunger 4as shown in Fig. -9 and with the aperture 23 in engagement with the hook, the pack may be driven into the magazine by virtue .of the fact that the folded portion 33 of the clip abuts the closure piece 3 I. As the pack proceeds inwardly it rides under the spring 29 and deects it and, as the nub I2 passes the tip .34 of the spring 29, it positively engages the shoulder I4 of the nubi Whilethus engaged, withdrawal of Ythe Vstack'is positively prevented, although the `clip may be readily stripped from it, and this is accomplished by simply withdrawing the plunger by grasping the closure block, the clip being withdrawn by virtue o f its engagement with the hook 32 leaving the stack inthe position shown in Fig. 1. The tip of the spring 29 may be forked as shown in Fig. 6 in order to `prevent lateral dislocation of the stack and thus prevent contacting of the blade edges with the wall of the magazine.

When fully'withdrawn, the clip may be readily detached from its engagement with the hook 32 and discarded.

While We have described Ya certain particular construction in which our invention is incorporated, we do not desire to be limited to this particular embodiment since many changes and modiiications may easily be made without departing from the spirit and scope of the invention as set forth in the following claims.

1. A razor blade pack comprising a stack ci razor blades and a U-shaped clip retaining the stack in assembly, atleast one of the legs of the clip being provided with a flange closely overlying and sloping over an exposed bevel facet oi one of the exterior blades of the stack to prevent lateral movement of the stack in the direction of said iiange, and an abutment on one of said legs for resisting lateral movement of said stack away from said flange, the location of said abut- 2,398,539 fment on said leg being on the edge thereof that l from said flange, the location of said abutment on said leg being on the edge thereof thatis remote from the side of the pack where the said flange is located, and another abutment on one of said legs for resisting longitudinal movement of said stack in the direction of the base of the clip.

3. A razor blade pack comprising a stack of razor blades and a U-shaped clip retaining the stack in assembly, at least one of the legs ofthe clips being provided with a flange closely overlying and sloping over an exposed bevel facet of one of the exterior blades of the stack to prevent lateral movement of the stack in the direction of said flange, one of said legs being provided with an abutment for resisting'lateral movement of Said Stak aWaY fIOm said ange, the location of said abutment on said leg being on the edge thereof that is remote from the side of the pack wherein said flange is located, said clip being provided with an aperture in the region of its base serving as a means whereby it may be stripped from said stack.

4. A razor blade pack comprising a stack of razor blades and a U-shaped clip of resilient material clamping the stack in assembly under resilient pressure, the legs of the clip being provided with flanges closely overlying and sloping over the bevel facets of the exterior blades of the stack to prevent lateral movement of the stack in the direction of said flange, and an abutment on at least one of said legs positioned at an edge thereof remote from said flanges for resisting lateral movement of said stack away from said flange and also an abutment on one of said legs positioned near the bend oi the U for opposing longitudinal movement of said stack in the direction of the U.

5. A razor blade pack comprising a stack of razor bla'des and a U-shaped clip retaining the stack in assembly, each blade being provided with a nub on one face and an indentation on the other, the nub of each blade being nested in the indentation of a contiguous blade, at least one of the legs of the clip being provided with a flange closely overlying and sloping over an exposed bevel facet of one of the exterior blades of the stack to prevent lateral movement of the stack in the direction of said flange, and an abutment on one of said legs for resisting lateral movement of said stack away from said flange, the location oi.' said abutment on said leg being on the edge thereof that is remote from the side of the pack where said flange is located.

6. A razor blade pack comprising a stack of razor blades and a U-shaped clip retaining the stack in assembly, each blade being provided with a nub on one face and an indentation on the other, the nub of each blade being nested in the indentation of a contiguous blade, at least one of the legs of the clip being provided with a flange overlying and sloping over an exposed bevel facet Vof one of the exterior blades of the stack, an

abutment on ione of said legs positioned on Van edge thereof opposite said flange for :resisting lateral movement of said' stack away'fromsaid flange and another abutment on one of said legs positioned near` the bend of` the U for resisting longitudinal movement of saidstack in the direction of the'said' bend, the leg contiguous to 'the lexterior blade from'which a nubprojects out- .wardly being suicintly short to' expose the nub.

7. A razor Abladefpack comprising a stack of razor blades and alu-'shaped clip of resilient material retaining thestack in assembly under resilient pressure, each blade being provided with a nub on one face and anJ indentation on the other, the nub of each blade being nested in the indentation of a contiguousblade, at least one of the legs of the clip being provided with a flange closely overlying and sloping over an exposed bevel facet of one of the exterior blades `of the stack to prevent lateral movement of theA stack in the direction "of said flange, and an abutment on one of saidV legs positioned at an edgethereof i remote from said ange for resisting lateral movev the legs of the clip being provided with a flange closely overlying and sloping over an exposed bevel facet of one of the exterior blades of the stack to prevent lateral movement of the stack in the direction of said flange, one of said legs being provided with an abutment positioned at an edge thereof remote from said flange for resisting lateral movement of said stack away from said flange, said clip being provided with an aperture in the region of its base serving as a means whereby it may be stripped from said stack.

9. A razor blade pack comprising a stack of razor blades and a U-shaped clip of resilient material clamping the stack in assembly under resilient pressure, each blade being provided with a nub on one face and an indentation on the other, the nub of each blade being nested in the indentation of a contiguous blade, the legs of the clip being provided with flanges sloping over the facets of the exterior blades, and an abutment on at least one of said legs positioned at an edge thereof remote from said anges for resisting lateral movement of said stack away from said flanges and also an abutment on one of said legs positioned near the bend of the clip to oppose longitudinal movement of said stack in the direction of the said bend, the leg contiguous to the exterior blade from which a nub projects outwardly being suiciently short to expose the nub.

10. A razor blade pack comprising a stack of razor blades and a U-shaped clip retaining the stack in assembly, each blade being provided with a nub on one face and an indentation on the other, the nub of each blade being nested in the indentation of a contiguous blade, the nub and indentation sloping away from the surface of the blade and toward one end thereof at an angle small enough so that a blade may by an endwise sliding motion be dislodged from the blade contiguous to it, at least one of the legs of the clip being provided with a flange closely overlying and sloping over an exposed bevel facet of one of the exterior blades of the stack to prevent lateral movement -of the stack in the direction Vof said llange, and an abutment on one of said legs positioned at an yedge thereof remote from said flange for resisting lateral movement of said stack away from said ilange.

11. A razor blade pack comprising a stack or razor blades and a U-shaped clip retaining the stack in assembly, each blade Ibeing provided with a nub on one face and an indentation on the other, the nub of each blade being nested in@ sliding motion be dislodged from the blade contiguous to it, at least one of the legs of the clip being provided with a ange overlying and sloping over an exposed facet of one -of the exterior blades of the stack, an abutment on one of said legs positioned at an edge thereof remote from',Y

said flange for resisting lateral movement of said stack away from said flange and another abutmenton one of .said legs positioned near the base of the clip for resisting longitudinal movement of said stack in the direction of the said base, the

leg contiguous to the exterior blade from which a nub projects outwardly being sufficiently short to expose the nub.

12. A razor blade pack comprising a stack of razor blades and a U-shaped clip retaining the stack in assembly, each blade being provided with a nub on one face and an indentation on the other, the nub of each blade being nested in the indentation of a contiguous blade, the nub and indentation sloping away from the surface of the blade and toward one end thereof at an angle small enough so that a blade may by an endwse sliding motion .be dislodged from the blade contiguous to it, at least one of the legs of the clip being provided with a flange closely overlying and sloping over an exposed bevel facet of one of the exterior blades of the stack to prevent lateral movement of the stack in the direction of said flange, one of said legs being provided with an abutment positioned at an edge thereof remote from said flange for resisting lateral movement of said stack away from said flange, .said clip being provided with an aperture in the region of its base serving as a means whereby it may-be stripped from Said stack.

LEOPOLD KUHNL. JOHN R. REYBURN. 

